RHSA-2026:25561

Vulnerability from csaf_redhat - Published: 2026-06-13 01:24 - Updated: 2026-06-19 03:49
Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs: nodejs24: * nodejs24-24.16.0-1.hum1 (aarch64, x86_64) * nodejs24-bin-24.16.0-1.hum1 (noarch) * nodejs24-devel-24.16.0-1.hum1 (aarch64, x86_64) * nodejs24-docs-24.16.0-1.hum1 (noarch) * nodejs24-full-i18n-24.16.0-1.hum1 (aarch64, x86_64) * nodejs24-libs-24.16.0-1.hum1 (aarch64, x86_64) * nodejs24-npm-11.13.0-1.24.16.0.1.hum1 (noarch) * nodejs24-npm-bin-24.16.0-1.hum1 (noarch) * v8-13.6-devel-13.6.233.17-1.24.16.0.1.hum1 (aarch64, x86_64) * nodejs24-24.16.0-1.hum1.src (src)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-9675

A flaw was found in undici. A malicious WebSocket server could exploit this vulnerability by sending fragmented messages that individually meet size limits but collectively exceed them. This can lead to unbounded memory growth in the client process, resulting in memory exhaustion and a denial of service (DoS).

5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 - Uncontrolled Resource Consumption
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:nodejs24-main@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:nodejs24-main@noarch —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:nodejs24-main@src —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:nodejs24-main@x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
References
To clipboard 

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        "text": "This update includes the following RPMs:\n\nnodejs24:\n  * nodejs24-24.16.0-1.hum1 (aarch64, x86_64)\n  * nodejs24-bin-24.16.0-1.hum1 (noarch)\n  * nodejs24-devel-24.16.0-1.hum1 (aarch64, x86_64)\n  * nodejs24-docs-24.16.0-1.hum1 (noarch)\n  * nodejs24-full-i18n-24.16.0-1.hum1 (aarch64, x86_64)\n  * nodejs24-libs-24.16.0-1.hum1 (aarch64, x86_64)\n  * nodejs24-npm-11.13.0-1.24.16.0.1.hum1 (noarch)\n  * nodejs24-npm-bin-24.16.0-1.hum1 (noarch)\n  * v8-13.6-devel-13.6.233.17-1.24.16.0.1.hum1 (aarch64, x86_64)\n  * nodejs24-24.16.0-1.hum1.src (src)",
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  "vulnerabilities": [
    {
      "cve": "CVE-2026-9675",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "discovery_date": "2026-06-17T17:01:41.811903+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2489979"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in undici. A malicious WebSocket server could exploit this vulnerability by sending fragmented messages that individually meet size limits but collectively exceed them. This can lead to unbounded memory growth in the client process, resulting in memory exhaustion and a denial of service (DoS).",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "undici: undici WebSocket client vulnerable to denial of service via cumulative fragment bypass",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is rated Moderate by Red Hat (CVSS 5.9) because successful exploitation requires the undici WebSocket client to connect to an attacker-controlled server (AC:H), which is unlikely in typical Red Hat product deployments where WebSocket endpoints are trusted internal services. No Red Hat product is affected \u2014 all streams shipping undici bundle versions 5.x through 7.x, which are outside the vulnerable range of 8.0.0 to 8.4.x. The vulnerable code path (unbounded WebSocket frame accumulation) was introduced in undici 8.0.0 and is not present in earlier major versions.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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        {
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-9675",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9675"
        },
        {
          "category": "external",
          "summary": "https://cna.openjsf.org/security-advisories.html",
          "url": "https://cna.openjsf.org/security-advisories.html"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodejs/undici/security/advisories/GHSA-38rv-x7px-6hhq",
          "url": "https://github.com/nodejs/undici/security/advisories/GHSA-38rv-x7px-6hhq"
        }
      ],
      "release_date": "2026-06-17T16:20:32.548000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-13T01:24:50+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:nodejs24-main@aarch64",
            "Red Hat Hardened Images:nodejs24-main@noarch",
            "Red Hat Hardened Images:nodejs24-main@src",
            "Red Hat Hardened Images:nodejs24-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:25561"
        },
        {
          "category": "workaround",
          "details": "Red Hat products that bundle the undici HTTP client ship versions 5.x, 6.x, and 7.x, which do not contain the vulnerable WebSocket frame accumulation code path introduced in undici 8.0.0. No Red Hat product streams are affected by this vulnerability. Users who have manually installed undici 8.x outside of Red Hat-provided packages should upgrade to undici 8.5.0 or later to fully resolve this issue.",
          "product_ids": [
            "Red Hat Hardened Images:nodejs24-main@aarch64",
            "Red Hat Hardened Images:nodejs24-main@noarch",
            "Red Hat Hardened Images:nodejs24-main@src",
            "Red Hat Hardened Images:nodejs24-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:nodejs24-main@aarch64",
            "Red Hat Hardened Images:nodejs24-main@noarch",
            "Red Hat Hardened Images:nodejs24-main@src",
            "Red Hat Hardened Images:nodejs24-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "undici: undici WebSocket client vulnerable to denial of service via cumulative fragment bypass"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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